These constants are used with the
programming - windows - GetWindowLong and
programming:windows:SetWindowLong functions.
- define GWL_USERDATA (-21)
- define GWLP_USERDATA (-21)
- define GWL_EXSTYLE (-20)
- define GWL_STYLE (-16)
- define GWL_ID (-12)
- define GWLP_ID (-12)
- define GWL_HWNDPARENT (-8)
- define GWLP_HWNDPARENT (-8)
- define GWL_HINSTANCE (-6)
- define GWLP_HINSTANCE (-6)
- define GWL_WNDPROC (-4)
- define GWLP_WNDPROC (-4)
- define DWL_MSGRESULT 0
- define DWLP_MSGRESULT 0
- define DWL_USER 8
- define DWLP_USER 8